Haha, I might know something about the Bridgestone Potenza RE070. I did something unconventional, which I'm sure I'll catch flak from some on this board.

I wanted all Michelin PSS in 255/35/20 and 305/30/20 but as I mentioned, they're really not sure when Michelin will make the PSS in 305/30/20. So I decided to go with PSS 255/35/20 for the fronts, and Bridgestone Potenza RE070 305/30/20 in the back. Yes I know it's not ideal, but I'm not tracking this car. I use it more as a daily driver. However, as soon as the PSS is available in 305, I'll get it for sure. Bonus, the RE070 are only like $277 on Tirerack since they're out of production now.

I'll let you know when I receive my tires and wheels and have them installed.